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L `' �► <br /> STATE OF CALIFORNIA �,U198$ GEORGE DEUKMEJIAN.Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOA�WJONMENTAL HEALTH <br /> CENTRAL VALLEY REGION PERMIT/SERVICES <br /> 3443 ROUTIER ROAD <br /> SACRAMENTO,CA 95827-3098 <br /> 26 July 1988 <br /> Mr. Ted Knowles <br /> 1140 West Hammer Lane <br /> Stockton, California 95207 <br /> KNOWLES GAS STATION, 1140 WEST HAMMER LANE, STOCKTON <br /> Thank you for submittal of the layout map of the old facility and <br /> proposed new facility. In addition, Groundwater Technology, <br /> Incorporated (GTI) submitted a Preliminary Report (PR) for your <br /> facility which we received on 21 July 1988 . Jim Grasty of GTI <br /> reported that a typographical error in Table 3 (concentrations <br /> are in parts per billion (ppb) not parts per million (ppm) ) will <br /> be corrected and a corrected page will be submitted. <br /> It is apparent that soil and groundwater contamination has been <br /> found at your site. Therefore, a Problem Assessment Report (PAR) , <br /> as described in the enclosure, is required. Please submit a PAR <br /> within 60 days of receipt of this letter. A request for extension <br /> of the deadline should be submitted with an explanation in <br /> writing. <br /> The PAR requires that the extent of soil and ground water <br /> contamination be determined and presented in map and cross <br /> section form. Existing soil data may be sufficient to delineate <br /> the extent of soil contamination but it is apparent that more <br /> monitoring wells are needed to determine the extent of ground <br /> water contamination. Soil remediation must be considered prior to <br /> construction of the new facility because the new construction <br /> would interfere with any excavation of contaminated soils. <br /> If y�u /have anv questions, Dlease contact me at (916) 361-5740 or <br /> Scott Walker at (916) 361-5706 . <br /> GORDON BOGS <br /> /Underground Tank Program Coordinator <br /> SDW: sdw <br /> ENCLOS6RE <br /> cc: Ms. Laurie Cotulla, San Joaquin Local Health District w/o <br /> enclosure <br /> Mr. Jim Grasty, Groundwater Technology Inc. , Sacramento <br /> w/o enclosure <br />